Giellis appeared on the Facebook program, The Brother Jeff Show which centers primarily on issues dealing with the African American community in Colorado.

On Tuesday, KDVR reports, Giellis made the flub when she responded to questions about diversity in her campaign. Someone flatly asked her if she knew what it meant. She responded: “National African-American…” She soon realized she was very wrong, but continued to stumble when asked by host Shay Johnson if she knew what the organization actually does. “You’re gonna test me on this?” She asked.

Giellis’ is trying to unseat incumbent Mayor Michael Hancock, who is African American, and seeking a third term. The two will meet in a runoff election on June 4.

On Wednesday, Giellis sent a statement saying she had a “momentary lapse.”

“Yesterday as a guest on the Brother Jeff show with guest host Shay J, I was asked if I knew what the NAACP was, to which I replied with my acknowledgment of its mission and work. Then, when asked what the acronym stood for, I momentarily struggled to recall,” she said.

Gielis continued that she is familiar with the NAACP and that she knows the local chapter co-hosted a mayoral forum along with the Colorado Black Women for Political Action (CBWPA). Further, she promised to participate in the Colorado Black Round Table Candidate Forum along with becoming a member.